28 February 2013 HSLC Conference Call Notes

I. Attendees: Matt Parker, Jason Davis, and Keith Sherburn (NCSU), Frank Alsheimer (CHS), Trisha Palmer (FFC), Justin Lane and Larry Lee (GSP), Steve Zubrick (LWX), Jonathan Blaes and Mike Strickler (RAH), Steve Keighton (RNK)

II. Jason provided a brief update on his radar climatology work. He is “getting into the weeds” with some of the signatures, performing some fine tuning/qc’ing of his rotational tracking algorithm, and searching for commonalities and methods for categorizing various signatures. He is examining approximately 100 events. Jason mentioned the possibility of developing a “radar signatures” webpage for HSLC events. The specifics of how this be developed for a front-end user to “browse” are still being discussed. Justin mentioned the possibility of developing a database, beginning with an abbreviated version of the SPC relational database, and adding radar loops and the times series graphs that we are working on. A front-end user interface could be developed to allow forecasters to search the database on any number of mesoanalysis parameters or convective mode, allowing them to view radar loops and times series graphs of the events meeting the search criteria. Considering the paucity of training for and relative rarity of HSLC events, this could be valuable as a training tool and/or situational awareness tool prior to en event.

III. Keith provided a short presentation on his modeling work (please see your e-mail for his presentation). He relayed that any storm scale modeling study has two phases: 1.) An environmental sensitivity component (used with a coarser resolution grid), and 2.) A higher resolution study of storm scale processes. He is currently in the middle of phase 1.) He is running 6-hour simulations using four different soundings (two different thermo profiles and two different hodographs). The upshot is that the sounding with a “supercell” thermo profile and a “non-supercell” hodograph produces the most robust, longest-lived, and “interesting” convection. He plans to use this profile for phase 2.), which he will begin shortly.

IV. Each attending office provided an update on their case study progress. Each office reported continued steady progress, citing the usual WFO time constraints.

Action Item/Critical Deadline: As was relayed last week via e-mail, each participating WFO is requested to have an easily digestible written synopsis of at least one case study prepared by 1 May 2013. It was decided that a 4-6 page, “conference pre-prints style” paper was the appropriate length to shoot for. Essentially, if you had to summarize your case study in a 15-minute presentation, what are the important points that you would highlight? WFOs who have been writing much lengthier case studies are encouraged to continue doing so, as these could provide opportunities for WFO-focused research in the future. However, the synopses should be considered “highest priority” for now.

V. Finally, Hunter Coleman (CAE), Justin, Wendy Moen (CHS), and Andrew Zimmerman (AKQ), with help from JB (and perhaps others) will be working with WDTB in developing training material based on the results of the project.

VI. Look for the Doodle poll for scheduling the March conference call sometime around the 10th.

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